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Münster 2017 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 32: Structure and Dynamics of Nuclei V

HK 32.2: Talk

Wednesday, March 29, 2017, 17:15–17:30, F 33

Coulomb excitation of 142Xe — •Corinna Henrich1, Thorsten Kröll1, Mirko von Schmid1, Gary Simpson2, and Michael Thürauf1 for the IS548 collaboration — 1IKP, TU Darmstadt, Germany — 2LPSC, Grenoble, France

The neutron rich nucleus 142Xe lies in the vicinity of the doubly magic nucleus 132Sn and is only two protons below 144Ba, which exhibits the largest octupule collectivity in the region. To study the onset of octupole collectivity and follow the evolution of quadrupole collectivity in this area a "safe" Coulomb excitation experiment was carried out at the new HIE-ISOLDE facility (CERN) in the end of 2016. Both beam and target nuclei were measured using C-REX, i.e. an array of segmented Si detectors, covering forward as well as backward angles. The MINIBALL spectrometer was used to detect the emitted gamma rays in coincidence. The experimental setup will be presented along with the first stages of the analysis.

This work is supported by BMBF under contract 05P15RDCIA, by the EU under contract ENSAR 262010 and by ISOLDE.

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